gnutls_handshake_set_post_client_hello_function — set callback to be called after the client hello is received
#include <gnutls/gnutls.h>
void
gnutls_handshake_set_post_client_hello_function( |
gnutls_session_t | session, |
| gnutls_handshake_post_client_hello_func | func); |
is the function to be called
This function will set a callback to be called after the client hello has been received (callback valid in server side only). This allows the server to adjust settings based on received extensions.
Those settings could be ciphersuites, requesting certificate, or anything else except for version negotiation (this is done before the hello message is parsed).
This callback must return 0 on success or a gnutls error code to terminate the handshake.
You should not use this function to terminate the handshake based on client input unless you know what you are doing. Before the handshake is finished there is no way to know if there is a man−in−the−middle attack being performed.
The full documentation for gnutls is maintained as a Texinfo manual. If the info and gnutls programs are properly installed at your site, the command
info gnutls
should give you access to the complete manual.
| COPYRIGHT |
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Copyright © 2008 Free Software Foundation. Permission is granted to make and distribute verbatim copies of this manual provided the copyright notice and this permission notice are preserved on all copies. |